Bobbin-stripper.



G. F. BAHAN & F. R. GHADWIGK.

BOBBIN STRIPPER. 111110111011 FILED UNE 5. 1913.

Patented Dec; 22, 1914.

4 SHEETS-SHEET 1.

l i j I o. I" y y, x ER J I G qxli/tmeooco I Q .31 @113 G. F. BAHAN & F. R. GHADWIOK. BOBBIN STRIPPER.

APPLIUATION FILED JUNE 5.1913.

1, 1 21 ,602, Patented Dec. 22, 1914a 4 SHBETSSHEET 2.

Swan W01 s wi bncomzo i 5513 WE. Chadwick G. P. BAHAN & P. R. OHADWIOK.

BOBBIN STRIPPER.

APPLICATION FILED JUNE 5.

Patented Dec. 22, 1914.

4 SHEETS-SHEET 3.

q/vi Mwowo G. F. BAHAN & P. R. GHADWIGK.

BOBBIN STRIPPER.

APPLICATION FILED JUNE 5. 1913.

1, 1 21,602.. Patented Dec. 22, 1914.

4 SHEETS-SHEET 4.

q Vitmwom I UNITED STATES PATENT OFFICE.

GEORGE E. BAHAN AND FREDERICK R. GHA'DWICK, 0B GHABLO'I'TE, NORTH CAROLINA.

BUQBIBIN-STRIPPER.

Specification of Letters Patent:

PatentedDee. 22, 1914.

To all whom z't-may concern:

Be it known that we, Gnome F. BAHAN and FREDERICK B. CHADWIOK, of Charlotte, in the county of Mecklenburg'and State of North Carolina, have invented certain new and useful Improvements in Bobbin-Strippers; and we do hereby declare the following to be a full, cleanand exact descr ption of the invention, such aswill enable others skilled. in the art to: which it appertains to make and use the same.

The object of this invention is to provide improved means for automatically stripping waste yarn from bobbins.

A further object is to provide improved means for automatically feeding the bobbins to the strippers. And further objects of the invention are to. insure the removal of any surplus Waste that might be on the bobbins; and also to automatically remove waste yarn from the device. 7

In the accompanying drawings Figure 1 is a side elevation. Fig. 2 is a plan View. Fig. 3 is an enlarged end View of the stripper, showing a portion ofv the feeder; Fig. 4 is a plan View of the stripper on an enlarged scale. Fig. 5 is an enlarged side view of the stripper.

Referring to the drawing, 1 designates a main frame whereon is mounted an endless feeder 2, the particular construction of which may be widely varied, but'preferably this feeder is composed of chain belts having connecting cross-pieces or slats 3 upon which are mounted bobbin holders. Each of these holders is shown as comprising two socket pieces, one, 4-, to receivethe reduced end of a bobbin and the other, 5', the enlarged end thereof. These sockets 5 have outwardly extending finger pieces 6. The bobbins are placed on an inclined table 7,

and one by one are taken up by the sockets.

1 and 5, the bobbins being directed into the sockets by finger pieces 6' which remove them from fingers 8 at the lower end of the' feed table. Theupperflight of the feeder travels horizontally some distance, and as the. belts make their turn downward the bobbins are successively dropped into an: inclinedchute 9, being removed from the sockets by the bottom of the chute.

10 designates a bobbimb'ox which is; designed to receive the bobbins from the chute and from whichthey will be ejected and in the same movement be freed. of the'waste and. designed to support the reduced end of Y the bobbln. The enlarged end of the latter is supported by a cross-plate 14 havin a cut out to accommodate the bobbin-hea said cross-plate being at the outer end of the bobbin-box and in about the same vertical plane as the sockets 5 of the feeder so that with the plunger-head in its retracted position the several bobbins after being.- discharged from the feeder will be properly supported within the bobbin-box.

Thestripper is composed of a lower fixed, but preferably ad'justably mounted, jaw 16, and an upper pivoted jaw 17, both jaws having opposite semi-circular recesses, conointly forming an opening of suflicient diameter to insure engagement with the waste thread but without directly contacting with the bobbin itself. Adjacent to these recesses the jaws are beveled to present reduced edges for effecting the stripping of the thread from the bobbins. The lower stripper-jaw 16 is vertically adjustable through a bolt 18 which may be turned when the nut on a horizontally disposed bolt 19 is loosened, said latter bolt being projected through a vertically-disposed slot in the end of the bobbin-box.

The pivoted stripper jaw has its pivot at 20, and beyond its pivot has aweighted arm 21,v the tendency of which is to normally hold said. jaw opened, as shown in dotted lines, Fig. 3, to allow a bobbin to enter the bobbin-box. The side of the latter, at 22, Fig. 3, which is slotted to accommodate the jaw, forms a stop to limit the movement of the jaw and thereby prevent direct engagement between the two jaws. As soon as a bobbin is received in the bobbin-box the upper jaw 17 is automatically closed and held in its closed position while the bobbin is moved at right-angles to the two stripper jaws to remove the waste therefrom. For the purpose of insuring the removal of all waste, even when there is a surplus, we provide a knife 23 with which all surplus yarn will be caused to contact during the movement of the bobbin longitudinally ofthe' bobbin-box. This knife is shown as adjustably mounted on the jaw 17. (See Fig. 5.) Ordinarily thewasteyarn will be removed by the stripper jaws, but when there is a surplus its removal is insured by the knife.-

While the means shown for automatically holding the pivoted jaw closed may be other sector member engages therewith.

We have shown the bearings of shaft 25 as extending upwardly from the bobbin-box and ashaving a sprocket wheel 27 which is driven by a chain 28 from the main power shaft 29. The operating mechanism is clearly shown in Fig. 2, but it is unneces- I sary to describe it in detail other than to state that it also drives a counter-shaft Whereon is mounted a cam disk 30 to which is adjustably connected one end of a pitman 31, the other end of which is pivoted to the slotted end ofv plunger 12 for imparting to the latter a reciprocatory motion in the bobbin-box; The power shaft 29 also carries the .wheels by which the endless carrier is rotated, one of such wheels being shown at 32 in Figs. 1 and 3. This shaft also drives a belt 33 for operating an exhaust fan 34 mounted on frame 1 beneath the bobbinbox, the purpose of such fan being to draw off and discharge the waste yarn.

In practice, the bobbins containing the waste yarn are placed on the inclined table 7 and are successively taken up by the endless feeder and automatically discharged by the latter, one at a time, into the bobbin-box Where the reduced end of each bobbin is supported by the plunger block 12 and the enlarged end by the recessed plate 14. Thereupon the upper jaw is closed by one of the sector members, and is held in its closed position as the plunger moves in one direction, causing the bobbin to travel between the stripper aws to effect the removal of the waste yarn. This movement also effects the discharge of the bobbin from the machine free of waste, and therefore it is unnecessary to provide additional means to remove the bobbin from the bobbin-box. If anybobbin contains a surplus quantity of waste yarn the knife insures'its removal. By the time a sector member disengages the pivoted jaw the plunger has reached the limit of its outer travel and discharged the bobbin from the machine. The plunger thereupon starts on its return travel and has reached its starting point by the time the next bobbin is dropped into the bobbin-box. As soon as I supports, a

the jaw 17 freed of the sector by which .it was closed it'autom'atically opens to allow and accurate in operation.

' We claim as our invention: 1

1. In a bobbin stripper, in combination, an endless feeder having supports for bobbins, a stationary bobbin-box into which the bobbins are designed to bedischarged by gravity from the feeder, stripping means arranged transversely of the bobbin-box and comprising a pivoted jaw which is opened to permit a bobbin to enter the bobbin box, means for automatically closing such jaw, and means for moving a bobbin transversely of the stripping means to strip the yarn from the bobbin asthe latter is being ejected from the bobbin-box.

2. In a bobbin stripper, in combination, an endless feeder having a series of bobbin stationary bobbin-box into which the bobbins are discharged by gravity, stripping means comprising a fixed jaw and a pivoted jaw, said jaws being mounted on the bobbin-box and arranged transversely thereof, means for' normally holding the pivoted jaw open to allow a bobbin to enter the bobbin-box, means for automatically closing said jaw, and means for moving a bobbin relatively tothe jaws as it is being discharged from the box.

3. In a bobbin stripper, in combination, an

. bobbin-box and arranged transversely thereof, one of said jaws having a knife extending laterally from-one of its sides, means for normally holding the pivoted jaw open to allow a bobbin to enter the bobbin-box, means for automatically closing said jaw, and means for moving a bobbin relatively to the jaws and knife as it is being discharged from the box.

4. In a bobbin stripper, astationary bobbin-box having ajfixed rest for one end of a bobbin, a movable rest for the other end of the bobbin, stripping jaws mounted on said box-adjacent to said fixed rest, one of said jaws being movable, means for opening and closing such latter jaw, and means for actuating said movable rest for ejecting a bobbin from the box, the stripper jaws stripping waste yarn from the bobbin when it is being so moved.

5. In a bobbin stripper, stripping means comprisinga vertically disposed fixed jaw, a pivoted 'aw movable in a vertical plane, a weight or normally holding said pivoted jaw open, means for feeding a bobbin between said jaws when opened, means for periodically engaging the pivoted jaw and holdingit closed, and means for moving a bobbin relatively to said jaws.

6. In a bobbin stripper, a stationary bobbin-box having a bobbin rest, a vertically disposed fixed jaw arranged transversely of the bobbin-box, a pivoted jaw movable in a vertical plane for cooperating with the fixed jaw to strip waste yarn from a bobbin, said jaws having opposite recesses, a wei hted arm for normally holding the pivote jaw open, a constantly-revolving element for periodically engaging the pivoted jaw to close the same, and means for moving a bobbin relatively to the jaws as it is belng ejected from said bobbin-box.

7. In a bobbin stripper, in combination, an endless feeder, a bobbin-box for receiving bobbins from the feeder, stripping means comprising a movable jaw, means for normally holding such jaw open to allow a bobbin to pass from the feeder into the bobbin-box, a constantly rotating shaft having a projecting member for periodically engaging the pivoted jaw to close the same, and means for ejecting a bobbin from the bobbin-box and moving it relatively. to the stripping jaws while the pivoted jaw is closed.

8. In a bobbin stripper, in combination, an endless feeder, a bobbin-box for receiving bobbins from the feeder, stripping means comprising a fixed and a movable jaw, means for normally holding such movable jaw open to allow a bobbin to pass from the feeder into the bobbin-box, a constantly rotating double sector for periodically engaging the pivoted jaw and holding the same closed, and means ,for moving a bobbin relatively to the stripping jaws.

9. In a bobbin stripper, in combination, a

constantly moving endless feeder having a series of bobbin-supports, a stationary bobbin-box, a chute between the bobbin-box and the feeder, said chute being arranged to automatically remove the bobbins from the v feeder and direct them into said bobbinbox, and constantly o erating means for stripping yarn from t e bobbins as they are ejected from the bobbin box.

10. In a bobbin stripper, in combination,

an endless feeder having a series of bobbinsupports, a bobbin-box, a chute between the bobbin-box and the feeder, the bottom of said chute intersecting the'path of travel of bobbins on said feeder for automatically removing the bobbins and directing them into said bobbin-box, and means for stripping yarn from the bobbins as they are e ected and means for stripping yarn from the bobbins and ejecting them from the bobbin-box.

12. In a bobbin stripper, in combination, an endless feeder having a series of bobbin supports, fingers projecting from said bobbin supports, a rest for the bobbins from which they are removed by said fingers, a bobbin-box, a chute between'the bobbin-box and the feeder, the bobbins being discharged over said chute to said bobbin-box, and means for stripping yarn from the bobbins and ejecting them from the bobbin-box.

In testimony whereof, we have signed this specification in the presence of two subscribing witnesses.

GEORGE F. BAI-IAN. FREDERICK R. CHADWICK.

Witnesses:

E. W. ANDREW, O. C. ANDREW. 

